Old English bróm is from a common West Germanic * bráma- (Old High German brâmo, "bramble"), from a Germanic stem bræ̂m- from Proto-Indo-European *bh(e)rem- "to project a point", with an original sense of "thorny shrub" or similar. Many genera also accumulate quinolizidine alkaloids, ammodendrine-type di piperidine alkaloids, and macrocyclic pyrrolizidine alkaloids. Most (and possibly all) genera in the tribe produce 5- O-methylgenistein. … bilabiate calyces with a bifid upper lip and a trifid lower lip, … the lack of an aril, or the presence of an aril but on the short side of the seed, and stamen filaments fused in a closed tube with markedly dimorphic anthers … and presence of α- pyridone alkaloids. The tribe does not currently have a node-based definition, but several morphological synapomorphies have been identified: The members of this tribe consistently form a monophyletic clade in molecular phylogenetic analyses. ![]() The Genisteae arose 32.3 ± 2.9 million years ago (in the Oligocene). Anarthrophytum and Sellocharis are also South American and Argyrolobium ranges into India. However, the largest genus, Lupinus, is most diverse in North and South America. The tribe's greatest diversity is in the Mediterranean, and most genera are native to Europe, Africa, the Canary Islands, India and southwest Asia. It includes a number of well-known plants including broom, lupine ( lupin), gorse and laburnum. ![]() ![]() Genisteae is a tribe of trees, shrubs and herbaceous plants in the subfamily Faboideae of the family Fabaceae. Genisteae subtribe Genistinae Bronn 1822.Argyrocytisus (Maire) Frodin & Heywood ex Raynaud.For the brooms of New Zealand, see Carmichaelia.
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